| 低频信号在玄武岩地区深层成像中的应用研究 |
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| 引用本文： | 佘德平,吴继敏,李佩,金晓蕾. 低频信号在玄武岩地区深层成像中的应用研究[J]. 河海大学学报(自然科学版), 2006, 34(1): 83-87 |
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| 作者姓名： | 佘德平 吴继敏 李佩 金晓蕾 |
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| 作者单位： | 河海大学土木工程学院,江苏,南京,210098;中国石油化工股份有限公司南京石油物探研究所,江苏,南京,210014;河海大学土木工程学院,江苏,南京,210098;中国石油化工股份有限公司南京石油物探研究所,江苏,南京,210014 |
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| 基金项目： | 中国石油化工股份有限公司资助项目 |
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| 摘 要： | 以江汉油田陵北玄武岩地区深层成像问题为例,分析了玄武岩地区深层成像困难的主要原因,并在此基础上利用地震波波场数值模拟技术模拟了玄武岩地区地震波的传播规律.结果表明:非均匀性很强的高速玄武岩地层会对常规频率勘探地震波场产生散射和屏蔽作用;长波长信号具有较强的穿透非均质体的能力.
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| 关 键 词： | 玄武岩 成像 低频信号 非均匀性 数值模拟 |
| 文章编号： | 1000-1980（2006）01-0083-05 |
| 收稿时间： | 2005-05-24 |
| 修稿时间： | 2005-05-24 |
Application of low-frequency signals to imaging of deep layers in subbasalt areas |
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| SHE De-ping,WU Ji-min,LI Pei,JIN Xiao-lei. Application of low-frequency signals to imaging of deep layers in subbasalt areas[J]. Journal of Hohai University (Natural Sciences ), 2006, 34(1): 83-87 |
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| Authors: | SHE De-ping WU Ji-min LI Pei JIN Xiao-lei |
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| Affiliation: | 1. College of Civil Engineering, Hohai University, Nanjing 210098, China ; 2. Nanjing Institute of Geophysical Prospecting for Petroleum, SINOPEC, Nanjing 210014, China |
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| Abstract: | A case study was performed of imaging of Linbei subbasalt area at Jianghan Oil Field.Some difficulties in imaging of deep layers were analyzed,and the law of seismic wave propagation in subbasalt areas was studied with the technique of numerical modeling of seismic wave fields.The result shows that the high-velocity subbasalt layer with great inhomogeneity has scattering and shielding effect on wavelets of conventional frequency for inspection of seismic wave fields,and that low-frequency signals have powerful capacity in penetrating subbasalt heterospheres. |
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| Keywords: | subbasalt imaging low-frequency signal inhomogeneity numerical simulation |
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